Currently accesses the kvm->devices list is not synchronized by any mechanism which can potentially lead to data corruption. Further, a number of the create operations on the individual devices are racy and would allow creation of multiple devices, opposite to the intention. Factor out portions of the XICS create operation into a separate init operation and protect the remaining list accesses and create operations with the kvm->lock. Tested on arm/arm64 and compile-tested on powerpc for the xics changes. Tested-by on other archs would be appreciated. Christoffer Dall (2): KVM: PPC: Move xics_debugfs_init out of create KVM: Protect device ops->create and list_add with kvm->lock arch/arm/kvm/arm.c | 6 +++++- arch/powerpc/kvm/book3s_xics.c | 12 ++++++++---- include/linux/kvm_host.h | 6 ++++++ virt/kvm/arm/vgic/vgic-init.c | 17 ++++------------- virt/kvm/kvm_main.c | 16 +++++++++++++++- 5 files changed, 38 insertions(+), 19 deletions(-) -- 2.9.0 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
